Safe Haskell	None
Language	Haskell2010

Network.DNS.Resolver

Contents

Configuration for resolver
Intermediate data type for resolver
Type and function for resolver

Description

Resolver related data types.

Synopsis

data ResolvConf
defaultResolvConf :: ResolvConf
resolvInfo :: ResolvConf -> FileOrNumericHost
resolvTimeout :: ResolvConf -> Int
resolvRetry :: ResolvConf -> Int
resolvConcurrent :: ResolvConf -> Bool
resolvCache :: ResolvConf -> Maybe CacheConf
resolvQueryControls :: ResolvConf -> QueryControls
data FileOrNumericHost
- = RCFilePath FilePath
- | RCHostName HostName
- | RCHostNames [HostName]
- | RCHostPort HostName PortNumber
data CacheConf
defaultCacheConf :: CacheConf
maximumTTL :: CacheConf -> TTL
pruningDelay :: CacheConf -> Int
data ResolvSeed
makeResolvSeed :: ResolvConf -> IO ResolvSeed
data Resolver
withResolver :: ResolvSeed -> (Resolver -> IO a) -> IO a
withResolvers :: [ResolvSeed] -> ([Resolver] -> IO a) -> IO a

Configuration for resolver

data ResolvConf #

Instances

Instances details

Show ResolvConf #
Instance details Defined in Network.DNS.Types.Resolver Methods showsPrec :: Int -> ResolvConf -> ShowS show :: ResolvConf -> String showList :: [ResolvConf] -> ShowS

defaultResolvConf :: ResolvConf #

Accessors

resolvInfo :: ResolvConf -> FileOrNumericHost #

resolvTimeout :: ResolvConf -> Int #

resolvRetry :: ResolvConf -> Int #

resolvConcurrent :: ResolvConf -> Bool #

resolvCache :: ResolvConf -> Maybe CacheConf #

resolvQueryControls :: ResolvConf -> QueryControls #

Specifying DNS servers

data FileOrNumericHost #

Constructors

RCFilePath FilePath
RCHostName HostName
RCHostNames [HostName]
RCHostPort HostName PortNumber

Instances

Instances details

Show FileOrNumericHost #
Instance details Defined in Network.DNS.Types.Resolver Methods showsPrec :: Int -> FileOrNumericHost -> ShowS show :: FileOrNumericHost -> String showList :: [FileOrNumericHost] -> ShowS

Configuring cache

data CacheConf #

Instances

Instances details

Show CacheConf #
Instance details Defined in Network.DNS.Types.Resolver Methods showsPrec :: Int -> CacheConf -> ShowS show :: CacheConf -> String showList :: [CacheConf] -> ShowS

defaultCacheConf :: CacheConf #

maximumTTL :: CacheConf -> TTL #

pruningDelay :: CacheConf -> Int #

Intermediate data type for resolver

data ResolvSeed #

makeResolvSeed :: ResolvConf -> IO ResolvSeed Source #

Make a ResolvSeed from a ResolvConf.

Examples:

>>> rs <- makeResolvSeed defaultResolvConf

Type and function for resolver

data Resolver #

withResolver :: ResolvSeed -> (Resolver -> IO a) -> IO a Source #

Giving a thread-safe Resolver to the function of the second argument.

withResolvers :: [ResolvSeed] -> ([Resolver] -> IO a) -> IO a Source #

Deprecated: Use withResolver with resolvConcurrent set to True

Giving thread-safe Resolvers to the function of the second argument. For each Resolver, multiple lookups must be done sequentially. Resolvers can be used concurrently.